Work-support.



E. E. WiNKLEY.

WORK SUPPORT.

MPUCATHFN FILiD AUG.ZO, E905 1,138,710- Patmted May 11, 1915.

2 SHEETS-SHEET 1.

E. E. WINKLEY.

I WORK SUPPORT. APPLICATION mm AUG.20| 1908.

1 1 38,7 1 0. Patented May 11, 1915.

2 SHEETS-SHEET 2- UNITED' STATES PATENT OFFICE.

ERASTUS E. WINKLEY, OF LYNN, MASSACHUSETTS.

WORK-SUPPORT.

To all whom it may concern:

Be it known that. I, ERAs'rUs E. VVINKLEY, citizen of the United States,residing at Lynn, in the county of Essex and State of Massachusetts,have invented certain new and useful Improvements in VVork-Supports; andI do hereby declare the follow- -ing to be a full, clear, and exactdescription of the invention such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to Work supports for shoe machinery and moreparticularly to Work supports for automatic shoe Ina-- chinery.

In automatieshoe machinery, that is, where a shoe, or part of a shoe inprocess is placed in the machine and the desired operation is thenperformed without any manipulation of the work on the part of theoperator during the progress of the op eration, the relative position ofthe work and theoperating tool as the operation progresses is ordinarilycontrolled by a correcting mechanism usually either a pattern, a cam, 51series of cams, or equivalent mechanical device. In operating on theshoe a par ticular point in the line of operation, which point may varyaccording to the nature of the operation to be performed, is selected asa starting point and the tool and work support, after the operation iscompleted, are ordinarily replaced in the relative positions they occupywhen starting the opera tion in order to properly position the machineparts for the commencement of the operation on the next shoe. In thisclass of machinery, therefore, it is only necessary for the operator toinitially position the shoe or other work and then start the machine inoperation.

It is obvious that the correcting mechanism must have a definiterelatiorl to the tool during the operation of the machine in order toproperly perform its function. All points on the correcting mechanismare, therefore, during such operation in definite relation to the tool.If, then, the work is initially positioned in the machine with anyselected point in the line of operation placed in the same relation tothe tool as the corresponding point on the correcting mechanism, itfollows that the desired change in ,relative position of the tool andwork throughout the operation will necessarily be Specification ofLetters Patent.

Application filed August 20, 1908.

Patented May 11, 1915. Serial No. 449,408.

obtained owing to the control of this movement by the correctingmechanism.

The principal object of this invention is to provide means, arranged infixed relation to a definite point on the machine Whose relation to thetool during the operation of the machine is known, for locating the workin a selected starting position relative to the too].

Another object of the invention is to provide work positioning meanswhich is normally held in inoperative position but which isautomatically placed in operative position at and during the time it isdesired to position. the work relatively thereto.

In the pri-rt'crred form of the invention these objects are attained bythe provision oi a stop or index mounted on the frame of the worksupport. and the further provision of means for moving the work bodilyrelatively to said step or index to 'permit the location in properworking relation'to the tool of the same selected starting point in theline of operation, on varying sizes of shoes or parts of shoes. Thisstop or index is normally in inoperative position and preferably itsmovement into operative position is controlled by the same devices whichcontrol the movement of the work relatively to the stop or index.

To the accomplishmentgf these objects, and such others as mavhcreinafterappear as will be readily understood by those skilled in the art, theinvention comprises the features and combinations of parts hereinafterdescribed and particularly pointed out in the appended claims.

The preferred form of the invention is illustrated in the accompanyingdrawings in which- Figure l is a side elevation of the work support.showing its connection to the power means for rotating it, Fig. 2 is anend elevation of the parts shown in Fig. 1, Fig. 3 is a detail insection on the line 3-3 of Fig. 1, Fig. 4 is a detail to be referred tohereinafter, and Fig. 5 is a front elevation of a complete automaticshoe machine cmoodying the present invention.

In the embodiment of the invention illustrated in the drawing, 1 is aportion of an arm which sustains the work support. A spindle 2 isloosely journalcd vertically in the arm 1 so that it may slide and turntherein and sustains at its upper end the base por- 0 tance below itsfulcrum 38 and bears against a collar 41 formed on the-locking sleeve28.

The spring 30 within the locking sleeve 28 is stronger than the'spring35 for maintaining the work locating stop 33 in its operative positionand, therefore, when the sleeve is in looking position, which is itsnormal position, it acts on the lever 37 in such manner as to cause amovement of the lever to the right, (Fig. 3), and, therefore,

a rotation of the pinion 36 in a direction to turn the work locatingstop down into its inoperative position (see Figs. 2 and 3). As soon,however, as the operator unlocks the work holder to adjust said holder,the release of the pressure of the locking sleeve on the lower end 40 ofthe lever 37 permits the spring 35 to turn the work locating stop upinto its operative position. Thus the sleeve 28 constitutes a combinedwork holder locking device andwork. locating stop controlling device andis a single means for releasing and permitting positioning movements ofboth the work holder 1d the work locating stop.

In the use of the work support, the jack frame 14 is first moved awayfrom the work positioning device 32-33, and the toe post is thenproperly positioned relative to the hccl post for the size of shoe to beoperated upon. The shoe is then jacked in the usual manncr. The operatorthen disconnects the locking sleeve 28 from the boss 26 in the mannerdescribed, which-movement causes the work locating stop to be thrown upinto its opcrative position. 'ith the locking slccvc still held out ofits locking position, the haudlc 25 is turned in a direction to move thework holder toward the work locating stop and this movement is continueduntil thc shoc contacts with said stop. The locking slcc-vc 28 is thenreleased and the two sets of tccth cngage, thus locking the work holdcrin its adjusted position and at thc-samc time. by the action of thelocking slccvc and the coin ncctions to the work locating stop, the stopis moved down into its inoperative position where it will not interferewith tho opcia tion to he pcrtormcd on the shoe.

The wor; support and work locating stop has been illustr-atcd anddcscrihcd as applicd to the type of automatic sh c machine illustratedand dcscrihcd in Lcttcrs latcnt ot' (lreat Britain granted to J. Boult.No. 'l L139, datcd July 8. 1905. The corrccting mechanism in the patentto Boult and in the machine of the drawings consists of three camscarried by a cam shaft. This correcting cam shaft is shown at 42 in Fig.5 and is operated at intervals to impart the several relative correctingmovements to the tool and work which occur when certain points of theshoe are reached in the course of operation thereon. The time ofoperation of the correcting mechanism is controlled by a controller 43all as in the patent to Boult.

Although the invention has been shown and described in connection withthe use of a jack and a positioning device located so as to bring thetoe of the shoe on the jack in contact therewith, it should beunderstood that the invention is not limited to this construction orarrangement of the parts. The invention is directed broadly to a workholder for supporting either an entire shoe, or any part of a shoe, forinstance, the sole of a shoe, and the work locatin stop may be at thetoe, heel, shank or, in act, in any desired relation to the shoe whichmay be found most convenient for the particular operation to beperformed. lVhatevcr position is selected for the work positioningdevice, howcvcr, must be selected with due regard to the correcting,mechanism which controls the relative change in position betwccn thework and the tool hereinbefore referred to. The correcting mechanism hasa definite relation to the tool during the operation of the machine and,therefore, if the work positioning device is located on the work supportin a definite location with respcct to a selected point on thecorrecting incchanisin. for instance, the point on the correct inmechanismwhich corrects the rel ative position of the work and toolduring the opcration of the tool at the toc of the shoc, thcn. ofccurse. the relativc-move. mcnt hctwccn the work and work positionin:dcvicc must hc such as to bring the toe of the work to the work locatingstop. If thc point srlcctcd on the correcting mechalli. ltl with respectto which the work positioning do. icc is located corrccts the relativeposition of tlic work and tool during the opcration t-l' the tool at thehccl or shank of thc shoc. Ihcn thc rclativc movement. lie.- twc n the.-hoc and the workpositioning d'evicc must hc such as to lHllrJ the hcclor shank to thc work locating stop. One point on lhc shoc havin; hccn poitioncd in a definitc clati u to thc corrcctin; incchanisin li y nicansof thc work positioning dcvicc. it follows zliat all pointson thc shocwill he propf crl v ucscntcd lo thc tool during the automatic opcrati uof thc machine for the l'casol! that thc changc in relative positionl)C-- twccn tlic shoc and the tool during such opcration ol' thc machineis govcrn'cd by the corrc ting mechanism.

'hilc thc particulars of construction here in ct forth arc well suitedto one form of thc invention. it is not to he undcrstoodthat theseparticulars arc essential since they may be variously modified withinthe skill of the artisan 'ithout departing from the true scope of theactual invention as defined by, the following claims.

What is claimed new, is 1- 1. A work support for automatic shoemachinery. having, in combination, a work holder and a work positioningdevice relatively movable in a direction to cause the work to engagesaid device and to place the work in working position in the machine,said device having a work locating stop normallygin inoperativeposition, and means for automatically placing said stop in operativeposition during the relative approach movement of the work and workpositioning device.

2. A work support for automatic shoe maehinery,- having, in combination,a Work holder and a work positioning device having a work locating stop,said holder and device being relatively movable to place the work onsaid holder in working position in the machine, and means for movingsaid stop into and out of operative position during the positioningoperation.

3. A work support for automatic shoe machinery, having, in combination,a por tion, a work positioning device fixedly mounted on said basehaving a movable work locating stop, means for holding said stop ininoperative position, actuating means for said stop, a work holdermovably mounted on said base, means for positioning said work holderrelatively to said device, means for locking said Work holderpositioning means against movement, and a single means for rel asingsaid work holder positioning means from the action of said locking meansand permitting positioning movements of both the Work holder and worklocating stop.

4. A work support for automatic shoe machinery, having, in combination,a n'iovably mounted work holder, a fixedly mounted \vork positioningdevice having a work locating stop movable into and out of operative)OSllLlOll, actuating means for adjust ing said work holder relativelyto said posi tioning device/and for moving said stop, and a combinedwork holder locking device and work locating stop controlling deviceconnected with said actuating lllt'illlS, whereby the stop is placed ininoperative position ivhcu the work holder is locked against adjustmentand in operative position during the adjusting operation.

A work support for automatic shoe machinery, having, in combination. abase portion, a work holder movabl mounted theiron, an actuating devicefor said holder, a work positioning device liXcdl) mount d on said basehaving a work locating stop mov able into and out of operative position,a controller for governing the position of said stop mounted on andoperable with the actuator for the work holder, and operativeconnections between said stop and controller. p

6. A work supportfor automatic shoe machinery, having, in combinatiofifamovable work holder, actuating means therefor including an operatingspindle, a locking device slidingly mounted on said spindle and normallyheld in locking position, a Work positioning" device having a worklocating stop movable into and out of operative p0sition, means forholding said stop in operative position, and actuating mechanism between the stop and locking device constructed and arranged hold the stopin inoperative position when the locking device is in looking position.

7. A work support for automatic shoe machinery. having, in combination,a work positioning device having a work locating stop fuloruniedthereon, a. spring arranged to hold said stop in operative position, apinion on the fulcrum of said stop, a lever having a rack at one endmeshing with said pinion,

a work holder movable relatively to said. po-

sitioning device, and a locking device for said work holder normallyheld in looking position and acting on said lever in a manner to holdthe stop normally in inoperative position, whereby a release of the Workholder permits the stop spring to move its stop into operative position.

8. The combination in an automatic shoe machine of a supporting frame, aspindle carried in said frame, a work support mounted on said spindle,and power means for rotating said spindle and support including acrankra-rin," and a connection between said support and crank armcomprising a lever having one end pivoted to one of said parts and itsother end held in sliding engagement with the other of said parts,thereby permitting a release of the support from its engagement with thepower means at the will of the operator.

9. The combination in an automatic shoe machine, of a tool, mechanismfor automatically correcting the relative positim n of the tool and thework, a. work support having a work positioning device in fixed relationto the. correct-hip mechanism, and a work holder in said work supportmovable relatively to said device, where y the work may be located in aselected starting position relatively to the correcting mechanism.

10. A. work support for automatic shoe nuu-hincrv, having, incombination, a movable work holder, and an independently mountcdpositioning device incapable of movement ith the work holder cooperatingtherewith. said device being normally in inoperative position andadapted to be moved into operative position at the will of the operatorto he engaged by the work on said holder on being brought toward thedevice,

' for supporting a and determine the initial position of the 'work inthe machine and to be returned to inoperative position'after the initialposition of the work has been determined.

11. A work support for automatic shoe machinery, havin in combination, ajack oe bottom up, and a shoe positioning device normally below theplane of the shoe bottom and adapted to be moved upward into the planeof the'shoe bottom fltfi cooperate with the jack in positioning the l2.A work support for automatic shoe machinery, having in combination, abase portion, a. work holder movably mounted on said base portion, and afixed work positioning device cooperating with the work holder normallyin ino erative position and adapted to be moved into operative positionwhile the holder is being moved to position the work thereon by anengagement of the work with said device.

13. A work support for automatic shoe machinery, having, in combination,a movable work holder, and a positioning finger cooperating therewithnormally in inoperative position and ada ted to be moved in a verticalplane into position to be engaged by the work on said holder on beingbrought to- Ward said finger, and determine the initial position of thework in the machine.

In testimon whereof I afiix my signature, in presence 0 two witnesses.

ERASTUS E. WINKLEY. Witnesses WARREN G. OGDEN, ANNIE G. RICHARDSON.

